[bengteck]

Originally Posted by Osager

If bengteck or someone else could clarify, I am not sure what is meant by CAI with respect to the HCHII. I looked at the stock air intake on my vehicle and it looks pretty "cold" to me. I'm not sure how any bolt-on part could make it colder. The intake is at the very front of the engine bay. I do not know if this setup is different on the other Civics, but it sure looks like a cold air intake to me. P.S. I am definitely not an auto mechanic but our other family car has a stock cold air intake.

You've answer them yourself, Cold Air Intake
HCH2 also petrol driven so no diff from other car except extra IMA
since in my country, its all year summer so on the hot afternoon i'll get 60C on stock but not sure if your place same kinda temp
our stock intake wind around the engine bay which can be very hot removing them do lower the temp
Other Civic setup totally different from us
Since the external air now rushes in instead of stock heated up by the engine bay bef entry to air filter therefore help in the FE

Originally Posted by zeta_msz_006

I've PM bengteck about it. He said he is running a flex hose to the front of the bumper. I am guessing the gains are due to setup sort of having a ram air effect, plus the hose he is using is probably a lot bigger then the stock one and less bends in it, so it's less restrictive.

my hose abt 3 feet long entry from the hole beside the fog lamp
hose diameter only 2.5 inches, same dia as the stock
its not the bend but bypassing the hotter route
btw it must work with KNN drop in as stock paper might not take the abuse